If you want a sativa, try their Pure Power Plant. It's a South African IBL which means that you can make your own seeds
(save $$$$ later) and they will be the same as the parents. It is also spicy, frosty, and yields like a champ.
NLxBB sounds like a good 'weight' strain, and Papaya is a great choice. Nirvana's is a gorgeous, indestructible, heavy-yielding plant that gives SUPER furry buds covered in thick orange hairs. It looks luxurious. I run it for variety, and my buddy runs it on a larger scale- good choice.